/Engine/Plugins/AI/MassCrowd/Source/MassCrowd/Public/MassCrowdSubsystem.h
Populates the crowd lane data array with all existing lane in the zone graph. Also creates some extra data for lanes that could be used to wait in case of temporarily closed lane (e.g. intersection crossings).
void BuildLaneData ( [FRegisteredCrowdLaneData](API\Plugins\MassCrowd\FRegisteredCrowdLaneData) & LaneData, const [FZoneGraphStorage](API\Plugins\ZoneGraph\FZoneGraphStorage) & Storage )